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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-05-16 23:50:05 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-05-16 23:50:05 +0000 |
| commit | 4edf17d91fffd965cddcfbdebd2f7ff174b22425 (patch) | |
| tree | e6e7803cf7f6b96abb32c2e5d79e70f33c18b852 /llvm/test/CodeGen/X86/tailcallstack64.ll | |
| parent | c249c411c26d0f70385231555d41a4388377d040 (diff) | |
| download | bcm5719-llvm-4edf17d91fffd965cddcfbdebd2f7ff174b22425.tar.gz bcm5719-llvm-4edf17d91fffd965cddcfbdebd2f7ff174b22425.zip | |
Teach LiveInterval::isZeroLength about null SlotIndexes.
When instructions are deleted, they leave tombstone SlotIndex entries.
The isZeroLength method should ignore these null indexes.
This causes RABasic to sometimes spill a callee-saved register in the
abi-isel.ll test, so don't run that test with -regalloc=basic. Prioritizing
register allocation according to spill weight can cause more registers to be
used.
llvm-svn: 131436
Diffstat (limited to 'llvm/test/CodeGen/X86/tailcallstack64.ll')
0 files changed, 0 insertions, 0 deletions
